Technology and diverging values widen the gap between small-town USA and cities. Americans in rural areas and small towns see the world a lot differently from those living in and around cities, according to a Washington Post-Kaiser Family Foundation poll that the newspaper has been reporting on this week. A lot of the biggest differences in the poll have to do with values, or at least perceptions thereof: About 4 in 10 rural residents say their values are “very different” from those of people in cities and suburbs, while only 2 in 10 urban residents return the favor. But there are also some pretty clear economic contrasts: Only 30 percent of rural Americans rate job opportunities in their communities as excellent or good, compared with 50 percent in urban areas and 45 percent in suburbs. I…